Quote (DarkGlovy):
This is version 5.5 of my tool that with exploiting the new and the new 4.31 appldr key, will allow you to fix all eboot game requiring up to firmware 4.31 to be able to start on 3.55 CFW. The tool also provides several options that allow you to perform various operations without additional programs. Some games may require the fix file .sprx - .self or .edat.